Heating type and natural wind type choose at will, one type two choice.

加热式和自然风类型选择上，一类两个选择。

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It analyzes the influence of natural wind pressure and diagonal branches to ventilation network.

分析了自然风压和角联分支对通风网络的影响。

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Natural wind especially the crosswind has serious effect on the safety and economic operation of direct air-cooled units.

自然风特别是横向风对直接空冷机组的安全、经济运行有着重要的影响。

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The action of wind and water can form cave openings like natural rooms within the rock.

VOA: special.2009.07.20

Just on the other side of the lock are natural waterways that wind through freshwater marsh.

VOA: standard.2010.05.09

While a single wind-turbine does not affect the global atmosphere, the installation of a large number of such devices will interfere with the atmospheric circulation and diminish the extraction efficiency on the large scale, since any extraction of momentum will act in competition with natural wind-power energy dissipation by turbulence in the boundary layer.

FORBES: Researchers Warn Of Climatic Consequences To Harvesting Wind Energy On Mass Scale

Boone Pickens, once an ardent supporter of wind power, has announced plans to scale back wind investment, primarily because natural gas has made wind unattractive to investors.

FORBES: The Fiscal Cliff and Smart Energy Tax Policies

The EIA estimates onshore wind power will be 80% more expensive than conventional natural gas power, offshore wind power will be 142% more expensive than natural gas, solar thermal power will be 208% more expensive than natural gas, and solar photovoltaic will be 377% more expensive than natural gas.

FORBES: The Senate's EPA Vote Will Help Determine Our Economic Future